Miss USA 2005 Chelsea Cooley from Charlotte, North Carolina, smiles as she pulls on socks made from corn-derived Ingeo fiber, the "world's first man-made fiber" produced from corn extrusion, at an introduction of earth-friendly products in Tokyo November 8, 2005. A group of U.S. hosiery manufacturers, including Twin City Knitting Company Inc. which boasts the sweet-smelling product, have joined together to offer to the Japanese market products made from Ingeo fibre, derived from agriculture-based material instead of oil-based substances. REUTERS/Eriko Sugita